[ECOS] Getting Started stalled out..

[ECOS] Getting Started stalled out..

[Brian Findlay]

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I'm trying to get ECOS running on a target for the
first time,so please assume that I am pretty ignorant
at this point. I havebuilt the hello.exe image for
Motorola  Power PC 860 FADS board and am trying to
download it using a JTAG debugger (MaCraigor Raven). 
I have walked through the code starting at 0x10000 and
it blows up whenI reach function hal_varian_IRQ_init
doing a write to the SIMASK, it goes to interrupt
vector 0x1200 (page fault).
 
This confuses me for several reasons, if anyone can
shed some light on this I would really appreciate it.
Some questions and observations below:
(1) I believed once you made an simple test image for
a supported processor and platform, it should just
work..
(2) Is there a dependance on a RedBoot ROM, or other
ROM (which I don't have).
(3) Where can I find the function
hal_variant_IRQ_init.. no luck on finding assembler
code with grep. Is there some renaming going on
somewhere or something like this?
(4) Any good pointers to some decent documentation on
how to download and run this, only relevant thing I
found was
http://sources.redhat.com/ecos/docs-latest/tutorials/ppc/ecos-tutorial.11.html#pgfId=2340802
and this really wasn't much help....
 
 
 
Any comments at all are appreciated...
 
Thanks
 
Brian Findlay
 

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Re: [ECOS] Getting Started stalled out..

[Jesper Skov]

On Fri, 2002-03-22 at 18:19, Brian Findlay wrote:
> This confuses me for several reasons, if anyone can
> shed some light on this I would really appreciate it.
> Some questions and observations below:
> (1) I believed once you made an simple test image for
> a supported processor and platform, it should just
> work..

Theory is a lovely thing... FWIW, FADS is unsupported and has not been
changed for many many months. It's quite likely suffering from bit rot.
We don't have any FADS boards ourselves and the port was contributed.

> (2) Is there a dependance on a RedBoot ROM, or other
> ROM (which I don't have).

No, there's no stub/Redboot support for FADS.

> (3) Where can I find the function
> hal_variant_IRQ_init.. no luck on finding assembler
> code with grep. Is there some renaming going on
> somewhere or something like this?

Grep works for me. It's in hal/mpc8xx/current/src/var_intr.c

> (4) Any good pointers to some decent documentation on
> how to download and run this, only relevant thing I
> found was
> http://sources.redhat.com/ecos/docs-latest/tutorials/ppc/ecos-tutorial.11.html#pgfId=2340802
> and this really wasn't much help....

Try the README in the HAL.

Jesper


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